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United States Patent | 6,196,769 |
Satran ,   et al. | March 6, 2001 |
A cutting tool assembly rotatable about an axis of rotation having a tool in which a replaceable insert is mountable. The tool has two clamping jaws spaced apart by an insert receiving slot. The insert has top and bottom surfaces each of which has two abutting surfaces. The abutting surfaces have a rear abutting portion and a front abutting portion and in accordance with one embodiment the insert is thicker at its rear abutting portion than at its front abutting portion. This structure of the insert provides positive axial locking of the insert, ensuring no axial movement of the insert relative to the tool during machining. The abutting surfaces of the top surface slope towards each other and inwardly towards a central portion of the insert. Similarly, the abutting surfaces of the bottom surface slope towards each other and inwardly towards the central portion of the insert. The insert is thereby effectively radially clamped by the clamping jaws in a double dove-tail manner.
Inventors: | Satran; Amir (Kfar Vradim, IL); Weberman; Yosef (Kfar Vradim, IL) |
Assignee: | Iscar Ltd. (Migdal Tefen, IL) |
Appl. No.: | 294399 |
Filed: | April 20, 1999 |
May 05, 1998[IL] | 124328 |
Current U.S. Class: | 407/40; 407/42; 407/47; 407/50; 407/53 |
Intern'l Class: | B26D 001/12 |
Field of Search: | 407/40,41,42,47,49,50,58,60,62,113,116,110,117 |
2188743 | Jan., 1940 | Severson | 407/49. |
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2870523 | Jan., 1959 | Richard | 407/6. |
3380137 | Apr., 1968 | MacPetrie et al. | 407/35. |
3827119 | Aug., 1974 | Bennett | 407/40. |
4344724 | Aug., 1982 | Kress et al. | |
4462725 | Jul., 1984 | Satran et al. | 407/92. |
4493596 | Jan., 1985 | Grunsky et al. | 408/233. |
5071291 | Dec., 1991 | Kaminski | 407/30. |
5454671 | Oct., 1995 | Qvarth | 407/42. |
5580194 | Dec., 1996 | Satran et al. | |
5971671 | Oct., 1999 | Mina | 407/42. |
Foreign Patent Documents | |||
32 04 210 A1 | Feb., 1982 | DE. | |
42 39 311 C2 | Apr., 1996 | DE. | |
0 216 064 A1 | Jul., 1986 | EP. | |
172820 | Dec., 1991 | GB. |